Comparación entre barniz de flúor y láser de diodo en disminución de hipersensibilidad post-blanqueamiento dental.

Abstract

Objective: To compare the effectiveness of 5% fluoride varnish and low-level diode laser in reducing tooth sensitivity after teeth whitening in patients treated at the UCSG Dental Clinic during the period B-2025. Materials and methods: A quantitative, prospective, quasi-experimental comparative study was conducted with 30 patients, divided into two groups of 15 participants. Group A received 5% fluoride varnish, and Group B received low-level diode laser. Tooth sensitivity was assessed using the VAS scale before, after, and after desensitizing therapy. Data were analyzed using repeated-measures ANOVA with the Jamovi software. Results: Tooth sensitivity increased significantly after whitening, rising from an initial mean of 3.53 to 7.27. After the application of desensitizing therapies, sensitivity decreased to a mean of 2.20 (p < 0.001). The group treated with fluoride varnish showed a mean sensitivity score of 7.80 after bleaching and 2.27 after therapy, while the group treated with laser showed mean sensitivity scores of 6.73 and 2.13, respectively. No significant differences were found between the groups (p = 0.225). Conclusion: Both desensitizing therapies were effective in reducing tooth sensitivity after bleaching. No significant differences were observed between 5% fluoride varnish and low-level diode laser, demonstrating that both treatments have similar efficacy.